Teochew (潮州话), also Romanized as Teowchew or Chiuchao, is the main language of a region in Eastern Guangdong, around the cities of Shantou and Chaozhou. It is also fairly common in Hong Kong and among overseas Chinese, especially countries in Southeast Asia such as Thailand, Cambodia, Laos, Malaysia and Singapore, and the dominant language in Bangkok's Chinatown.

Teochew is related to Minnan Hua and Hainanese, but only partly mutually intelligible with Minnan Hua and mutually unintelligible with Hainanese. Teochew is not mutually intelligible with Mandarin or Cantonese, but it is common for Teochew speakers to also know one or both of those. Foreigners in the region often choose to learn Mandarin and/or Cantonese rather than Teochew because they are more widely used. Teochew, just like any other Min languages of Fujian is more difficult to learn for foreigners than Mandarin or Cantonese.